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May 1993

Progression of Early Glaucomatous Visual Field Loss as Detected by Blue-on-Yellow and Standard White-on-White Automated Perimetry

Author Affiliations

From the Optics and Visual Assessment Laboratory (OVAL), Department of Ophthalmology, University of California, Davis (Drs Johnson, Casson, and Brandt); School of Optometry, University of California, Berkeley (Dr Adams); and the University of Ottawa (Ontario) Eye Institute (Dr Casson).

Arch Ophthalmol. 1993;111(5):651-656. doi:10.1001/archopht.1993.01090050085035

• Objective.  —To determine whether blue-on-yellow perimetry reveals progression of glaucomatous damage before it is evident with standard white-on-white perimetry.

Design.  —A Humphrey field analyzer (Humphrey Instruments, San Leandro, Calif) was modified to perform blue-on-yellow perimetry to isolate and measure the sensitivity of short wavelength-sensitive mechanisms. Participants were tested annually with standard white-on-white automated perimetry and blue-on-yellow automated perimetry for 5 years.

Patients.  —Sixteen patients with early glaucomatous visual field loss in one or both eyes and 62 age-matched normal control subjects.

Results.  —At baseline, 25 (78.1%) of the 32 eyes exhibited larger deficits with blue-on-yellow perimetry, five (15.6%) had equivalent loss with both tests, and two (6.3%) had larger deficits with standard white-on-white perimetry. Seven (21.9%) of the 32 eyes demonstrated evidence of progressive visual field loss with standard white-on-white perimetry in 5 years, while the other 25 eyes (78.1%) were relatively stable. Deficits with blue-on-yellow perimetry were twice as large as deficits with white-on-white perimetry in the stable group and were three to four times as large in the group with progressive field loss.

Conclusions.  —Blue-on-yellow perimetry is effective in predicting which patients with early glaucomatous visual field loss are most likely to have progressive loss. The rate of progressive loss is greater with blue-on-yellow perimetry than with standard white-on-white perimetry.

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